text: On the evening of May 15, the Steering Committee for Covid - 19 Prevention and Control in Da Nang City said the city is taking samples for random widespread testing by household to assess the risk in the city?
classes:  No, randomly large - scale testing is a waste of resources, and doesn't produce any results.  Also, randomly large - scale testing is a waste of resources, and doesn't produce any results.  Yes, randomly large - scale testing is a waste of resources, and doesn't produce any results.